(Reuters) – Iranian President Mahmoud Ahmadinejad on Monday disregarded a U.N. warning to avoid incendiary rhetoric and declared ahead of the annual General Assembly session that Israel has no roots in the Middle East and would be “eliminated.”

Ahmadinejad also said he did not take seriously the threat that Israel could launch a military strike against Iran’s nuclear facilities, denied sending arms to Syria, and alluded to Iran’s threats to the life of British author Salman Rushdie.

The United States quickly dismissed the Iranian president’s comments as “disgusting, offensive and outrageous.”

Israeli Prime Minister Benjamin Netanyahu has hinted Israel could strike Iran’s nuclear sites and criticized U.S. President Barack Obama’s position that sanctions and diplomacy should be given more time to stop Tehran from acquiring nuclear weapons.